Abstract: A polarization system having a first substrate with a first layer system, and at least one second substrate with a second layer system disposed downstream in a beam path from the first substrate formed by a beam source. The first and second layer systems have a first stack on the substrate and a second stack on the first stack; wherein the first stack comprises an alternating sequence of high and low refractive index oxidic layers; the second stack having an alternating sequence of high and low refractive index fluoridic layers. The first layer system splits an unpolarized beam and the second layer system splits the beam again such that the proportion of a polarized beam downstream of the second layer system is greater than that downstream of the first layer system.

Abstract: A monolithic lens mount is formed by an annular body which is divided through material recesses into an outer mount ring, an inner mount ring and three connection structures which are arranged so as to be offset by 120° relative to one another. The connection structures in each instance form a chain of at least three, preferably five, connection webs which transition into one another and which are constructed as radial connection webs and axial connection webs. The axial flexural stiffness and radial flexural stiffness and the torsional stiffness of the connection structures can be determined via the dimensioning of the radial connection webs and axial connection webs.

Abstract: The invention relates to a method for producing a wavefront-corrected optical arrangement comprising at least two optical elements. Using the method, a total wavefront error in the optical arrangement is determined and compared to a permissible tolerance range for the total wavefront error. To perform the method, the optical elements are individualized by assigning an individual identifier to each of them, such that individualized optical elements are obtained, individual surface defects are measured with correct coordinates on all the individualized optical elements and the measured individual surface defects are stored with correct coordinates assigned to the appropriate individualized optical element. The optical arrangement comprising the individualized optical elements is produced virtually as a virtual optical arrangement and a total wavefront error is calculated for the virtual optical arrangement.

Abstract: Mount assembly with a monolithic mount formed by a mount ring with a plurality of retaining arms with free ends and an element, which retaining arms are arranged concentrically around the axis of symmetry of the mount ring and extend at least partially in axial direction. Three of the retaining arms contact an end face formed at the element and hold the element axially, while the other retaining arms are bonded to a circumferential surface formed at the element and prevent the element in particular from rotating.

Abstract: An optical mount, comprising an outer ring (1), an inner ring (2), at least two manipulator units, by means of which the inner ring (2) is adjustable with respect to the outer ring (1) in an adjustment plane perpendicular to a mount axis, and at least one clamping unit (0) acting independently of the manipulator units. The clamping unit (0) is formed by a threaded hole (4), which is directed radially to the mount axis (1.1) in the outer ring (1), and a screw (5) supported in said threaded hole (4), said screw (5) having a through hole (8) along the screw axis (5.0) which is connected with the inner ring (2) in the clamping condition via an adhesive gap (7) filled with adhesive (6).

Abstract: The invention relates to an adjustable, deformable mirror for compensating irregularities of a beam with a mirror element for reflecting incident rays of the beam, a base body for securing the mirror element and at least one actuating element for applying forces to the mirror element, wherein the mirror element is a planar element with a thickness of at least 1 mm, and the actuating element is a lever mechanism with lever elements. The invention also relates to a method for compensating irregularities of a beam as well as an optical arrangement with a mirror according to the invention.

Abstract: An adjustable lens mount with an outer mount ring, a laterally adjustable inner mount ring and at least two connection structures. The at least two connection structures communicate in each instance with a manipulator with a radial acting axis. The connection structures in each instance have a coupling member and a lever connected therewith. The coupling member is connected to the inner mount ring farther radially outside than the lever is connected to the outer mount ring.

Abstract: An optical assembly having an optical element with an optical axis, a frame holding the optical element at a plurality of positions, and a plurality of slots, which are respectively arranged between the plurality of positions and the optical axis in the optical element.

Abstract: The approach presented here provides a membrane unit (105) comprising micro-optical structures (115), which comprises a wafer (110) as carrier basis of the micro-optical structures (115), an intermediate substrate (300) connected to the wafer (110), and a carrier (130) connected to the intermediate substrate (300), wherein the coefficients of thermal expansion of the wafer (100), of the intermediate substrate (300) and of the carrier (130) are dimensioned such that a coefficient of expansion of the carrier (130) is greater than a coefficient of expansion of the intermediate substrate (300) and the coefficient of expansion of the intermediate substrate (300) is greater than or equal to a coefficient of expansion of the wafer (110).

Abstract: A lens mount for radially fixing, or for radially adjusting and fixing, in a lens tube, having a mounting ring in which tangentially running first slots form cylindrical segments which, during the operation of turning the external diameter of the mounting ring to a nominal dimension are deformed by a screw by a width of the first slots, and therefore the circumferential surface of the mounting ring is not turned, at least in part, along the segment and the external diameter has an oversize.

Abstract: The invention relates to an adjustable, deformable mirror for compensating irregularities of a beam with a mirror element for reflecting incident rays of the beam, a base body for securing the mirror element and at least one actuating element for applying forces to the mirror element, wherein the mirror element is a planar element with a thickness of at least 1 mm, and the actuating element is a lever mechanism with lever elements. The invention also relates to a method for compensating irregularities of a beam as well as an optical arrangement with a mirror according to the invention.

Abstract: An apparatus for controlling an airbag module in a vehicle cabin is provided that includes a control apparatus for triggering the airbag module, a plenoptic camera configured as a camera module that generates image data having depth information within a prespecifiable region in the vehicle cabin with the prespecifiable region comprising at least a first and a second partial region of a trigger region of the airbag module, and an evaluation device which determines on the basis of the image data whether an object, in particular a vehicle occupant, is located in the first or the second partial region and the control apparatus controls the airbag module in dependence on the position of the object.

Abstract: Mount assembly with a monolithic mount formed by a mount ring with a plurality of retaining arms with free ends and an element, which retaining arms are arranged concentrically around the axis of symmetry of the mount ring and extend at least partially in axial direction. Three of the retaining arms contact an end face formed at the element and hold the element axially, while the other retaining arms are bonded to a circumferential surface formed at the element and prevent the element in particular from rotating.

Abstract: A device and method for measuring a power density distribution of a radiation source is provided. The device includes a radiation source designed to emit a light beam in a radiation direction; a substrate disposed downstream of the radiation source in the radiation direction and having an extent in an x-direction and a y-direction, the substrate having a first region and at least one further second region, and the first region comprises a diffractive structure designed to separate the light beam impinging on the substrate into a zeroth order of diffraction and at least one first order of diffraction; and a detector unit disposed downstream of the substrate in the radiation direction and designed to measure the intensity of the first order of diffraction transmitted through the substrate and to derive a power density distribution therefrom.

Abstract: A method for optimizing an intensity of a useful light distribution includes: providing a light source for emitting a light beam in a z-direction, which defines an optical axis, with a first intensity distribution; providing a beam shaping optical unit and a beam focusing optical unit for generating a second intensity distribution to be used in a target plane, the target plane being inclined by an angle ALPHA relative to a focal plane determined by the beam focusing optical unit; determining a first intensity at a first point and a second intensity at a second point of the second intensity distribution to be used. The points P1 and P2 are arranged on different sides of the back focal plane; and displacing the beam shaping optical unit along the y-axis in such a way that the difference between the two intensities I1 and I2 lies within a predefinable limit.

Abstract: A lens mount with a mount ring (1) having a mount ring axis (1.1), at which mount ring (1) is provided an edge support (1.2) which is radially extended with respect to the mount ring axis (1.1), with a round optical component (2) which contacts the edge support (1.2) by an end face and with an intermediate ring (3) which contacts the other end face of the optical component (2) and which is fixed in position opposite the mount ring (1), e.g., by means of a screw ring (4.1). Three point-shaped first protuberances (1.3) and second protuberances (3.3), respectively, are provided at the edge support (1.2) and at the intermediate ring (3) in each instance on an imaginary circular ring (1.4) of identical size at angular distances relative to one another, and one each of the first protuberances (1.3) and one each of the second protuberances (3.3) lie in each instance on an imaginary straight line (5) running parallel to the mount ring axis (1.1) through the edge region (2.2).

Abstract: Thermally compensated mounting assembly with a monolithic mounting element and with a rotationally symmetrical element mounted therein, wherein the mounting element is divided into a mounting ring with an axis of symmetry and a plurality of elastic connection arms via which the mounted element is held in the mounting element. The connection arms have at least one portion which extends in axial direction of the axis of symmetry. A compensation ring contacts all of the connection arms inside these portions coaxial to the mounting ring. The compensation ring is advantageously made from the same material as the mounted element and completely absorbs the restoring forces occurring as a result of the temperature-dependent deformation of the connection arms due to a different expansion of the mounting element and of the mounted element so that invariant forces act on the connection points between the connection arms and the mounted element.

Abstract: A scanning device includes a scan unit with a polygon mirror, pre-scan optics and post-scan optics. The pre-scan optics are arranged upstream of the polygon mirror in such a way that a beam bundle coming from the light source impinges on the polygon mirror at an angle of incidence (?) in a cross scan plane, and the optical axis of the post-scan optics is arranged in a reflection direction of the polygon mirror. Distortions, trapezoidal distortion and scan bow, occurring when imaging the light source on a scan line are minimized in that the cylindrical mirror of the post-scan optics is tilted at a first tilt angle (?) relative to the surface normals to the polygon mirror in the cross scan plane, and one of the two corrective lenses of the post-scan optics is tilted relative to the optical axis of the post-scan optics at a second tilt angle (?) and is arranged so as to be offset by a distance.

Abstract: Thermally compensated optical assembly comprising a monolithic mount which is divided by slits into a mounting ring and at least three elastic links which are connected to an optical element. The elastic links compensate the thermal expansion differences between the mounting ring and the optical element through deformation. The temperature-dependent reaction forces brought about by the deformation are compensated. For this purpose, the quantity of compensation elements is equal to the quantity of links. The compensation elements comprise in each instance an expansion body and a spring element.

Abstract: The invention relates to a polarization system (1) comprising the following features:—a first substrate (3) composed of a first substrate material with a first layer system (3a) applied thereto, and, disposed downstream in a beam path (2) formed by a beam source, at least one second substrate (4) composed of a second substrate material with a second layer system (4a) applied thereto;—wherein the first and second layer systems comprise a first stack (3b, 4b) applied on the substrate and a second stack (3c, 4c) applied on the first stack;—wherein the first stack comprises an alternating sequence of high and low refractive index oxidic layers;—wherein the second stack comprises an alternating sequence of high and low refractive index fluoridic layers;—wherein the first layer system (3a) splits an unpolarized beam (2a), which forms the beam path (2) and impinges on the layer system (3a) at an angle ? that is greater than the Brewster angle for the substrate material used, into a first component (2d), which is for